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This study systematically investigates the pressure-bearing capacity and failure mechanism of air suspension reservoirs through numerical simulation, burst testing, and theoretical calculation. Based on nonlinear material constitutive relations, numerical simulations reveal that when the cylinder wall thickness increases to 2.3 mm, the maximum equivalent plastic strain reaches 6%, demonstrating sufficient strength to withstand the design pressure of 6 MPa. Burst tests show the actual pressure-bearing of the 2.3 mm thick reservoir reaches 7.29 MPa, with failure consistently occurring at the nozzle-joint area, correlating perfectly with high-stress zones identified in simulations. Fracture surfaces exhibit continuous tearing morphology, confirming typical ductile fracture characteristics. Comparative theoretical calculation indicates the mean diameter formula achieves merely 2.2% deviation from experimental results, significantly outperforming the Faupel formula, thus validating its superiority for burst pressure prediction in thin-walled reservoirs.
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| 科 Family | 属数 Number of genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) | 属 Genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) |
|---|---|---|---|---|---|---|
| 鹅膏菌科Amanitaceae | 2 | 11 | 5.26 | 鹅膏菌属 Amanita | 10 | 4.78 |
| 小菇科 Mycenaceae | 2 | 12 | 5.74 | 丝盖伞属 Inocybe | 5 | 2.39 |
| 多孔菌科 Polyporaceae | 8 | 14 | 6.70 | 蜡蘑属 Laccaria | 5 | 2.39 |
| 红菇科 Russulaceae | 3 | 23 | 11.00 | 小皮伞属 Marasmius | 6 | 2.87 |
| 小菇属 Mycena | 11 | 5.26 | ||||
| 光柄菇属 Pluteus | 5 | 2.39 | ||||
| 红菇属 Russula | 17 | 8.13 | ||||
| 栓菌属 Trametes | 5 | 2.39 |
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